Business Acquisitions - Consideration Transferred Vets First Choice (Details) - Vets First Choice $ / shares in Units, $ in Millions	Feb. 07, 2019 USD ($) $ / shares shares
Business Acquisition [Line Items]
Total Covetrus shares issued to Vets First Choice shareholders (in shares) \| shares	39,041,689
Per share price (in actuals) (in usd per share) \| $ / shares	$ 43.05
Total fair value of shares issued to Vets First Choice shareholders	$ 1,681
Fair value of Vets First Choice replacement stock option awards attributable to pre-acquisition service	62
Vets First Choice debt repaid at close	24
Vets First Choice expenses paid at close	18
Less: Vets First Choice cash used to fund transaction	(9)
Total consideration	$ 1,776

Business Combination, Consideration Transferred, Acquiree Cash Payments

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Price of a single share of a number of saleable stocks of a company.

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